El Batan, Mexico
May 2, 2005
 |
Ears
of the original hybrid (left) alongside the hybrid that
allows its eaters to absorb more protein. |
A new,
early-maturing, quality protein maize hybrid developed by the
Indian Council for Agricultural
Research (ICAR) could provide small-scale farmers with
bigger harvests and better nutritional quality.
CIMMYT furnished the donor
maize parents and the methodology, which ICAR plant breeder
Raman Babu used to combine biotechnology and conventional
breeding. Babu hopes the new hybrid will improve the livelihoods
in the northwestern hills of India, where many depend on maize
for food.
“Quality protein
maize grain has almost twice the lysine and tryptophan of normal
maize,” says Babu, who developed the new hybrid. “The higher
levels of those amino acids make more of the grain’s protein
useful to humans and farm animals.”
Quality protein
maize was developed by CIMMYT in the 1980s using conventional
breeding methods. In 2001, Babu crossed lines of this maize with
the parents of a popular, normal hybrid, Vivek Hybrid-9, already
grown by farmers in nine states of India. He then used molecular
markers—DNA signposts for genes of interest—to quickly select
the progeny that contained both the desirable parentage of the
original hybrid plus the quality protein trait. For this effort,
CIMMYT provided donor lines, the methodology, molecular markers,
and technical guidance along the way.
“Using this
approach, we were able to develop the quality protein maize
hybrid in less than half the time it would have taken using only
conventional selection methods,” Babu says. After passing
national trials in the next one or two years, the new hybrid
should be available to farmers at a nominal cost from government
agencies that produce the seed.
“The potential for
this new hybrid is good, because it’s the only early-maturing,
yellow grain, quality protein maize available and has all the
desirable characteristics of Vivek Hybrid-9,” he says. In
demonstration plantings, the new hybrid produced more than
double the state averages of local and open pollinated
varieties.
“A poor region
close to the Himalayas, the northwestern hills of India house
mainly subsistence farmers,” Babu says. “These are people who
cultivate less than half a hectare of land and use all the maize
they grow, either as food or in feed for their livestock.” Babu
believes farmers will initially be attracted by the hybrid’s
high yields, but will eventually notice the nutritional benefits
and find that their farm animals are stronger and more
productive. “Many experiments worldwide have shown the
advantages of quality protein maize in animal feeds.”
Source:
http://www.cimmyt.org/english/wps/news/2005/apr/qpmindia.htm
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